1. By: Matthew Iannacone Brandon Waller Christopher Jones Sammy Akato
One Ball & Two Cups
By: Matthew Iannacone
Brandon Waller
Christopher Jones
Sammy Akato

2. The Design
Design consists of a spring launcher to launch a marble into a cup, which rotates and drops the marble onto a series of declining PVC tracks.
There is a cup attached to a stamp on a hinged arm at the end of the last PVC track, which the marble knocks over ,stamping the paper.

3. Energy Used
Spring
-Elastic Potential Energy transferred to ball’s Kinetic Energy
Ball
-Gravitational Potential Energy decreases as Kinetic Energy increases
First Cup
-Conservation of momentum
Ball, Stamp, and Cup

4. Construction Issues
The biggest problem was getting the ball to shoot into the cup and turn it
The other most significant problem was making sure the hinged arm functioned properly

5. Conclusions Our design successfully and consistently stamped the paper
Practice makes perfect when dealing with projectile motion and targets
Hinges can become stiff if screwed in too tightly
Mouse traps with stamps attached are very effective (This is what everyone else did)